Just seen this one in an independent modern art cinema with a bunch of some 250 young people, who seemed to be interested on what was going on on the big screen rather than on their mobile screens, despite the movie comes in original (English) with subtitles.
First of all, this one has a proper trailer, which really catches the spirit and the atmosphere of what's thing is about (interviews, memories, some funny moments etc. with solid harsh noises on the background). However, the duration is less than an hour, so this well-thought out and well felt documentary is a bit too short. All the headliners, including Throbbing Gristle, SPK, Cabaret Voltaire, NON etc. are there, and quite memorable, but the impression of introductory videotape is strong afterward. On the other hand, it's clear that duration increase could have led to audience narrowing, so the result is rather well balanced. For me as a listener of these titles and their albums this one seemed rather short, however for most in 2015 it's just OK I guess, to raise the interest in the genre, to unveil the legend.
Personally it was nice to hear a couple of words from Stefan Alt, who's contribution (Ant-Zen) is next wave, post-industrial actually, however he said the right words which set up bonds of the genres, further into wider audience and popular culture.
I would recommend watching ISFTUD for anyone from 16+, interested in alternative and counter culture, to widen the limits of perception, submitted by society norms, besides the film's message is clear and positive — one should forget fear and confusion if there's a mission felt to deliver and share a sort of alternative culture, aside from stereotypes, and when it's accomplished, it could bring wealth as well, just like in pop culture.